Hardy Boys 37: The Ghost at Skeleton Rock
Franklin W. Dixon
The Hardy Boys Mystery Stories (37)
Hardy Boys 36: The Secret of Pirates' Hill
The Hardy Boys Mystery Stories (36)
Hardy Boys 34: The Hooded Hawk Mystery
The Hardy Boys Mystery Stories (34)
Hardy Boys 27: The Secret of Skull Mountain
The Hardy Boys Mystery Stories (27)
Hardy Boys 26: The Phantom Freighter
The Hardy Boys Mystery Stories (26)
Hardy Boys 25: The Secret Panel
The Hardy Boys Mystery Stories (25)
Hardy Boys 23: The Melted Coins
The Hardy Boys Mystery Stories (23)
Hardy Boys 22: The Flickering Torch Mystery
The Hardy Boys Mystery Stories (22)